Stephen has been at Big Society Capital since 2016 and CEO since May 2020. He joined Big Society Capital from the Civil Service, where he held senior posts in the Ministry of Justice, the Cabinet Office and Department for Energy and Climate Change among others. Stephen is also Chair of Friends Provident Foundation, a charity that makes grants and uses its endowment towards a fair and sustainable economic system that serves society and a Trustee of Fair Trials, a global criminal justice watchdog. His book Culture and Values at the Heart of Policy Making was published by Policy Press in 2020.